Fits 9ft 8 ribs umbrella frame. Each rib must measure 52" to 54", please measure your umbrella rib length before purchase. (Please note that this product does not contain umbrella frame)For essential wind and heat ventilation, we have included a single wind vent in the production of this umbrella canopy. With a wind vent, you can ensure that the wind and heat in and around your umbrella will be maintained, causing the product to remain stable and grounded. (Only the top cover, not the frame)
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